Why do I get this message "baking map saved to internal image, save it externally or pack it" when baking textures?
The message &quot;baking map saved to internal image, save it externally or pack it&quot; means that blender has created this image but the images is not saved to a place in the computer, that's why it says save it externally as an image file, you could also &quot;pack&quot; it, which means that it is saved as part of the blend file. If you don't do any of this and close the program the image would be lost.
Bu default blender does not save images as part of the .blend file, it references the image files from the directory where they are stored.
As for why the maps are not working, it not sure, but I suggest checking that your object UVs are well unwrapped.